Preparation method of antibacterial plaster model for dental department
A gypsum model and dental technology, which is applied in dentistry, dental prosthesis, medical science, etc., can solve the problems that the gypsum model cannot be quickly positioned, the mixing tank cannot be cleaned, and the raw materials of the gypsum model are not stirred sufficiently, so as to achieve rapid positioning, Increase efficiency and ensure cleaning effect
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[0028] Example
[0029] A method for preparing an antibacterial plaster model for dental use includes the following steps:
[0030] S1. Purification treatment: prepare phosphate rock into a certain slurry, filter out bulk impurities and suspended matter, add dilute sulfuric acid for neutralization reaction, remove a small amount of insoluble oxides, calcium carbonate, magnesium carbonate and other impurities to make it It is converted into soluble salt, and organic carbon is filtered at the same time. After adding quicklime for neutralization, it is crushed and ground into gypsum powder;
[0031] S2, crystal conversion reaction, put the gypsum powder in a slurry mixer, add sulfuric acid and phosphoric acid mixed acid aqueous solution according to a certain solid-to-liquid ratio, mix uniformly to prepare a mixed slurry, and then add a certain amount of crystal conversion agent , And finally add sodium acetate as an admixture to form a saturated solution system, so that the slurry und...
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